Thank you Lisa for your reply! BTW - your video reviews are awesome!! I commend your efforts.Here is where my lack of knowledge drives me nuts: 1: In real-word terms, how does dual-band WIFI work and how would I know that it is doing anything for me? For example: Let's assume that I am sitting in a hotel lobby in Argentina and there were 20 people using the hotel WIFI service. 19/20 have laptops with single band wifi and I am the only one with dual-band wifi. How would this hlep me specifically?2: When I read specs very rarely is the phrase "dual-band" shown in the wireless spec section. Is there a way for me to know if in fact a unit has dual-band.3: I am looking at 2 units: Dell XPS 13 (Haswell) andAcer Aspire S7 (Haswell)Do both of these units have dual-band wifi?Thanks for your help with this!!!